William holler



(No Model.)

2 Sheets-Sheet. 1. W. MOLLER.

METALLURGIG FURNAGE.

Patented Nov. 22,1881.

N. PETERS. Phulo-Lhogmphen Washinsln. DV C.

(No Model.) 2 sheets-sheen 2.

W. MLLER.

METALLURGIG PURNACBP No. 249,971. Patented Nov. 22,1881.

UNITED STATES PATENT OFFICE.

WILLIAM MOLLER, OF NEW YORK, N. Y.

lVIETALLURGlC- FURNACE.

SPECIFICATION forming part of Letters Patent No. 249,971, dated November 22, 1881.

Application filed June 23, 1881. (No modl.)

To all whom it may concern:

Be it known that I, WlLLIAM MoLLER., a citizen et' the United States, residing at New York, in the county and State ot' New York,

have invented new and useful Improvements in Metallurgiel Furnaces, et which the following is a speciiication.

This invention consists lin the combination, in a metallurgic furnace, of two pairs ofretorts placed into the furnace-wall, a tire-place in one end ot' the furnace-wall, an arch above said fire-place, with openings in its sides and in its top, smoke-nues extending beneath the retorts, and communicating with the lateral openings of the hre-arch and with the smokestack, smoke-hues extending on the sides and tops of the retorts, and communicating with the opening in the top of the fire-arch and withthe smoke-stack, and a damper for opening or closing the communication between the opening in the top ot' the tire-arch and the lateral and top dues, whereby the operation of' heating the retorts can be readily controlled, further, in the combination, in a metallurgie furnace, of two pairs of retorts placed into the furnacewall, a fire-place in one end of the furnace-wall, smoke-dues extending beneath, on the sides, and over the top of theretorts, and communicating with the smoke-stack, and air lues formed in the furnace-wall and communicating at one end with the open atmosphere and at the opposite end, one with each of the retorts.

This invention is illustrated in the accompanying drawings, in which Figure l represents a transverse vertical section in the plane oo or, Fig. 3. Fig. 2 is a longitudinal vertical section in the plane y y, Fig. 1. Fig. 3 is a plan or top view, partly in section. Fig. 4 is a horizontal section in the plane z e, Fig. 1.

Similar letters indicate correspondingparts.

dle of the brick wall and near one ot' its ends, Figs. l and 4, and which is provided atits top with an arch, F, which is closed at both ends and extends from one end of the wall A to the other, and hnsopenings d d in its sides and an opening, e, in its top. The transverse brick walls D extend up above the retorts, Fig. 9, and form the supports for the top of' the furnace-wall, and they are providedl with openingsfin their outside lower corners, Fig. 1, so

that the heated gases emanating from the tire can pass alongthe entire length offurnace-wall.

A longitudinal wall, G, which extends between the retorts BB2 B B3, Figs. 1 and 3, forms an additional support for the top ofthe furnace-wall A. Near the front end of this longitudinal Wall G is'situated a damper, H, which serves to open and close an opening, g, in the middle of the tiles C, which corresponds with the opening o in the top of the tire-arch, Fig. 1. This damper can be reached through a hand-hole, h, Fig. 2, in the furnace-wall, and if it occupies its closing position, as shown in Figs. 1 and 3, the heated gases emanating from the tire escape through the lateral openings d d in the {ire-arch and circulate all round the retorts before they can escape through the smokestack I. It' the damper is opened,the largest portion ot' the heated gases passes through the dues lo, between the longitudinal wall and the retorts B B B2 B3, to the smokestack, thereby reducing the heating effect of the fire on the retorts.

In the lower portion ofthe furnace-wall Aare air-ues J J J2 J 3, one for each retort. air-dues communicate by channelsjjjzj3 with the open atmosphere, (see Fig. 4,) and by means of pipes k It" k2 7c3 with the mouth-pieces of the retorts, and as the air passes through these air-channels it becomes heated, so that the same, on coming in contact with the heated ore in the retorts, promotes the combustion of sulphur, phosphorous, and otherlike impurities which are or may be mixed with the ore.

The air-nues may be arranged in a different manner from that shown in the drawingsfor instance, they may be formed partlyin the furnace-wall and partly in the sides of the retort-and I do not wish to coniine myself to the precise arrangement described. y

On the top ofthe furnacewall are placed a These y IOO series of pans, K Kl K2 K3, one over each of the retorts B B B2 B3.

In the bottom of each of the pans is an opening, I., which communicates by means of a channel, on, with an opening, n, in the top of the corresponding retorts, Fig. 2. Into each ofthe channels m is placed a fiue, M, which is provided with a damper, o, and with an opening, p, in its side, which can be closed by a gate, q.

The pans K K K2 K3 are filled with powdered ore, so that the same becomes heated before it is dumped into the retorts. When the gate q of one ofthe lues is opened the ore from the corresponding pan can -be dumped into the retort below. When the gates q are closed and thc dainpers 0 are opened the fumes from the retorts can escape through the ues M. By heating the ore in the pans K K K2 K3 before introducing the same into the retorts a considerable saving in time and fuel is effected.

What I claim as new, and desire to secure by Letters Patent, is-

1. The combination, in a metallurgie furnace, of two pairs of retorts placed into the furnacewall, a fire-place in one end ofthe furnace-wall, an arch above said lire-place, with openings in its sides and one opening in its top,smoke-I1ues extending beneath the retorts, and communieating with the lateral openings of the fire-arch and with the smoke-stack, smoke-fines extending on the sides and tops of the retorts, and communicating with the opening in the top of the fire-arch and with the smoke-stack, and a damper for opening and closing the communication between the opening in the top of the fire-arch and the lateral and top fines, substantially as and for the purpose shown and described.

2. Thecombination,ina metallurgie furnace, of two pairs of retorts placed into the furnacewall, a tire-place in one end of the furnace-wall, smoke-dues extending beneath, on the sides, and over the top ofthe retorts, and communieating with the smoke-stack, and air-fines formed in the furnace-wall and communicating at one end with the atmosphere and at the opposite end, one with each of the retorts, substantially as and for the purpose herein shown and described.

In testimony whereofl have hereunto set my hand and seal in the presence of two subscribing witnesses.

WILLIAM MULLER. [L. s]

Witnesses:

W. HAUFF, WILLIAM MILLER. 

